Home / 165,420.33-248,232.55-76,657.29

Finding the Fourth Proportional to 165,420.33, 248,232.55 and 76,657.29

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Solution

The fourth proportional to 165,420.33, 248,232.55 and 76,657.29 is: 115,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,420.33 : 248,232.55 = 76,657.29 : x
  2. Step 2: Convert to fraction form
    165,420.33/248,232.55 = 76,657.29/x
  3. Step 3: Cross multiply
    165,420.33x = 248,232.55 × 76,657.29
  4. Step 4: Simplify right side
    165,420.33x = 19,028,834,572.79
  5. Step 5: Solve for x
    x = 19,028,834,572.79/165,420.33
  6. Step 6: Final answer
    x = 115,033.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.